<template>
    <div class="wrapper">
        <!-- header部分 -->
        <header>
            <p>商家列表</p>
        </header>
        <!-- 商家列表部分 -->
        <ul class="business">
            <li v-for="item in businessArr" @click="toBusinessInfo(item.businessId)">
                <div class="business-img">
                    <img :src="item.businessImg">
                    <div class="business-img-quantity" v-show="item.quantity > 0">{{ item.quantity }}</div>
                </div>
                <div class="business-info">
                    <h3>{{ item.businessName }}</h3>
                    <p>&#165;{{ item.starPrice }}起送 | &#165;{{ item.deliveryPrice }}配送</p>
                    <p>{{ item.businessExplain }}</p>
                </div>
            </li>
        </ul>
        <!-- 底部菜单部分 -->
        <Footer></Footer>
    </div>
</template>

<script>
import Footer from '../components/Footer.vue'
export default {
    name: 'BusinessList',
    data() {
        return {
            orderTypeId: this.$route.query.orderTypeId,
            businessArr: [],
            user: {}
        }
    },
    created() {
        this.user = this.$getSessionStorage('user');
        this.$axios.get('BusinessController/listBusinessByOrderTypeId', {
            params: {
                orderTypeId: this.orderTypeId
            }
        }).then(response => {
            this.businessArr = response.data.data;
            if (this.user != null) {
                this.listCart();
            }
        }).catch(error => {
            console.log('listBusinessByOrderTypeId请求失败');
            console.log(error);
        });
    },
    components: {
        Footer
    },
    methods: {
        listCart() {
            this.$axios.get('CartController/listCart', {
                params: {
                    userId: this.user.userId
                }
            }).then(response => {
                let cartArr = response.data.data;
                for (let businessItem of this.businessArr) {
                    businessItem.quantity = 0;
                    for (let cartItem of cartArr) {
                        if (cartItem.businessId == businessItem.businessId) {
                            businessItem.quantity += cartItem.quantity;
                        }
                    }
                }
                this.businessArr.sort();
            }).catch(error => {
                console.error(error);
            })
        },
        toBusinessInfo(businessId) {
            this.$router.push({ path: '/businessInfo', query: { businessId: businessId } });
        }

    }
}
</script>

<style scoped>
/****************** 总容器 ******************/
.wrapper {
    width: 100%;
    height: 100%;
}

/****************** header部分 ******************/
.wrapper header {
    width: 100%;
    height: 12vw;
    background-color: #0097FF;
    color: #fff;
    font-size: 4.8vw;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
}

/****************** 商家列表部分 ******************/
.wrapper .business {
    width: 100%;
    margin-top: 12vw;
    margin-bottom: 14vw;
}

.wrapper .business li {
    width: 100%;
    box-sizing: border-box;
    padding: 2.5vw;
    border-bottom: solid 1px #DDD;
    user-select: none;
    cursor: pointer;
    display: flex;
    align-items: center;
}

.wrapper .business li .business-img {
    /*这里设置为相当定位，成为business-img-quantity元素的父元素*/
    position: relative;
	box-sizing: border-box;
}

.wrapper .business li .business-img img {
    width: 20vw;
    height: 20vw;
	border-radius: 10px;
}

.wrapper .business li .business-img .business-img-quantity {
    width: 5vw;
    height: 5vw;
    background-color: red;
    color: #fff;
    font-size: 3.6vw;
    border-radius: 2.5vw;
    display: flex;
    justify-content: center;
    align-items: center;
    /*设置成绝对定位，不占文档流空间*/
    position: absolute;
    right: -1.5vw;
    top: -1.5vw;
}

.wrapper .business li .business-info {
    margin-left: 3vw;
}

.wrapper .business li .business-info h3 {
    font-size: 3.8vw;
    color: #555;
}

.wrapper .business li .business-info p {
    font-size: 3vw;
    color: #888;
    margin-top: 2vw;
}

</style>